相关疑难解决方法(0)

我使用了ruby 1.9.2和rails 3.0.3.我试图安装rmagick gem但是当我运行时bundle install我得到一个错误告诉我:

Installing rmagick (2.12.1) with native extensions c:/Ruby192/lib/ruby/site_ruby
/1.9.1/rubygems/installer.rb:529:in `rescue in block in build_extensions': ERROR
: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

       c:/Ruby192/bin/ruby.exe extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for stdint.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
       --with-opt-dir
       --without-opt-dir
       --with-opt-include
       --without-opt-include=${opt-dir}/include
       --with-opt-lib …

如何为Windows XP安装rmagick gem？我已经使用头文件安装了ImageMagick,并安装了DevKit附带的RailsInstaller.org.我不知道在哪里修复这些错误.

C:\RailsInstaller\ImageMagick-6.8.2-Q16>ruby -v
ruby 1.9.3p125 (2012-02-16) [i386-mingw32]

C:\RailsInstaller\ImageMagick-6.8.2-Q16>gem -v
1.8.16

C:\RailsInstaller\ImageMagick-6.8.2-Q16>path=%PATH%;C:\RailsInstaller\ImageMagick-6.8.2-Q16

C:\RailsInstaller\ImageMagick-6.8.2-Q16>identify
Version: ImageMagick 6.8.2-0 2013-01-24 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2013 ImageMagick Studio LLC

C:\RailsInstaller\ImageMagick-6.8.2-Q16>gem install rmagick
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
        ERROR: Failed to build gem native extension.
        C:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb
checking for Ruby version >= 1.8.5... yes
Invalid drive specification.
Unable to get ImageMagick version
*** extconf.rb failed ***
Could not create Makefile …